What I have done before is shut down the database, and then do a
quick disk to disk backup and then restart the database.  Then in
the morning when I had more time, I would stage the data to tape.
Staging is similar to cloning, but after it goes to tape it removes
the media database references to the original copy.  The new copy
has all of the original info of the old copy associated with it.

If you do a clone and then want to restore off of the cloned tape,
you run into all of those little quirks.  And if you just backup the
filetype device  to tape, then the backup savesets will be
associated with whatever server the file type device exists on, not
your original client.  This makes restores just that much more fun.

Create a file with your saveset id's in it then run:

nsrstage -b pool -m -d -f filename

The -d deletes the input file on completion, with all of the
saveset id's in it.  After you have completed this you can
automatically cleanup the file type device with.

nsrstage -C -V volume

This scans the volume and removes any savesets that do not have a
media database entry.

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